Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Add RX STBC statistics.

More indentation fixes.

Expose the beacon miss counter.

Fix up some warnings from clang.

This still triggers a bug in clang..

Tidy up the statistic documentation.

Sponsored by: Hobnob, Inc.

Add the new statistics introduced in r227868.

Sponsored by: Hobnob, Inc.

Bring over the new aggregate statistics from the 11n branch.

Some of these values are currently updated by the driver (the 11n
RX related statistics) so they are immediately useful.

Patch the athstats code/Makefile to cross-compile correctly.

Make the existing ath tools build again.

* add missing includes to quieten warnings
* fix an inline function decl to have a return type
* since .h files are created during the build (opt_ah.h, ah_osdep.h)
which modify the behaviour of the HAL include/source files,
include OBJDIR in the path so the #include's work.

The tools should now build when the directory is added to LOCAL_DIRS
during a make buildworld.

add -z option to zero driver statistics (but note we don't yet zero
stats obtained from the hal)

add stats no frags and missing stat for no dma buffers

backout r188327, it broke summary printing

o use humanize_number to print totals
o shrink some fields now that we don't have to worry about overflow

add new stats and missing tx_raw stat

TDMA support for long distance point-to-point links using ath devices:
o add net80211 support for a tdma vap that is built on top of the
existing adhoc-demo support
o add tdma scheduling of frame transmission to the ath driver; it's
conceivable other devices might be capable of this too in which case
they can make use of the 802.11 protocol additions etc.
o add minor bits to user tools that need to know: ifconfig to setup and
configure, new statistics in athstats, and new debug mask bits

While the architecture can support >2 slots in a TDMA BSS the current
design is intended (and tested) for only 2 slots.

Sponsored by: Intel

o unbreak ani stat display
o improve some labels

sync w/ driver updates; this also brings in ani stats

Some overdue tlc:
o push include paths to the Makefile
o use the AFTER trick to simplify adding new items
o prepare stat blocks for additional data
o align values for verbose output
o fillin some missing stats

MFC after: 1 week

update copyrights

checkpoint new version

raw tx stat

dump new cabq stats

fix include pathnames

o move programs to separate directories and use stock Makefiles;
this simplifies including them in crunchgen images
o rename 80211* programs to wlan* as was originally intended